Finding the Fourth Proportional to 116,533.50, 160,821.05 and 65,548.62

Step by Step Solution

1. Step 1: Write the proportion equation
   116,533.50 : 160,821.05 = 65,548.62 : x
2. Step 2: Convert to fraction form
   116,533.50/160,821.05 = 65,548.62/x
3. Step 3: Cross multiply
   116,533.50x = 160,821.05 × 65,548.62
4. Step 4: Simplify right side
   116,533.50x = 10,541,597,566.71
5. Step 5: Solve for x
   x = 10,541,597,566.71/116,533.50
6. Step 6: Final answer
   x = 90,459.80